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Gentoo Linux Security Advisory GLSA 202009-12
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https://security.gentoo.org/
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Severity: Normal
Title: ZeroMQ: Denial of service
Date: September 13, 2020
Bugs: #740574
ID: 202009-12
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Synopsis
========
A vulnerability in ZeroMQ could lead to a Denial of Service condition.
Background
==========
Looks like an embeddable networking library but acts like a concurrency
framework.
Affected packages
=================
——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 net-libs/zeromq < 4.3.3 >= 4.3.3
Description
===========
It was discovered that ZeroMQ does not properly handle connecting peers
before a handshake is completed.
Impact
======
An unauthenticated remote attacker able to connect to a ZeroMQ
endpoint, even with CURVE encryption/authentication enabled, can cause
a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All ZeroMQ users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-libs/zeromq-4.3.3”
References
==========
[ 1 ] CVE-2020-15166
https://nvd.nist.gov/vuln/detail/CVE-2020-15166
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202009-12
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5
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